The multiaxial cyclic characteristic of GH4169 was investigated for the thin tubular multiaxial fatiguespecimen under proportional and non-proportional loading at high temperature.
薄壁疲劳试，控制应扭循环温合金材GH4169循环特性试验研究。
2
Specimen size and testing time has been determined according to the characterization parameters and fatigue conditions.
根据表征指标及疲劳破坏条件确定了样品的尺寸及测试时间。
3
The specimen and corresponding fixture have been designed, and the fatigue experiment of composite component with bolted joint has been carried out.